James Welker, D.O.
NPI 1568423440 · Internal Medicine Physician · Annapolis, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Welker, D.O. is a Internal Medicine Physician provider in Annapolis, MD (NPI 1568423440).
Provider details
- NPI number
- 1568423440
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- H0052024 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,636 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 1,242 | $115 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 234 | $111 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 31 | $174 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 31 | $16 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 26 | $76 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 33 | 17 |
| Losartan Potassium | 32 | 18 |
| Furosemide | 31 | 17 |
| Spironolactone | 28 | 17 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 27 | 15 |
| Ezetimibe | 23 | — |
| Metoprolol Succinate | 23 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,536 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-30
- Last updated
- 2020-09-29
- Certified
- 2020-09-29
Frequently asked questions
- What is James Welker's NPI number?
- James Welker's National Provider Identifier (NPI) is 1568423440, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Welker's specialty?
- James Welker is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Welker located?
- James Welker's practice location on file with NPPES is 621 Ridgely Ave, Annapolis, MD 21401-1091.
- What is James Welker's phone number?
- The practice phone number listed in the NPPES registry for James Welker is (443) 501-9300.
- Does James Welker accept Medicare?
- James Welker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Welker's NPI active?
- Yes — James Welker's NPI (1568423440) is active in the NPPES registry as of the last update on 2020-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.